Iwtebnal-cokbctstiow motor-stakting apparatus



Mar. 20, 1923. 1,448,926

S. JENCICK INTERNAL COMBUSTION MOTOR STARTING APPARATUS Original Filed Feb. 10, 1919 2 sheets-sheet 1 z a 1 I E E i 28 Il 1? w i i 9 l I E I .5 I J @L n Mar. 20, 1923. 1,448,926

s. JENCICK INTERNAL COMBUSTION MOTOR STARTING APPARATUS Original Filed Feb 1O 1919 C sheeLs-sheet 2 Patented Mar. 20, 1923.

UNITED STATES PATENT OFFICE.

STEPHEN J'ENCIGK, 0F CLEVELAND, OHIO, ASSIGNOR TO GUSTAVUS A. SCHANZE, OF CLEVELAND, OHIO.

INTERNAL-COMBUSTION MOTOR-STARTING APPARATUS.

Application filed February 10, 1919, Serial No. 275,984. Renewed May 22, 1922. ertal No. 562,846.

To all w 710m it may concern:

Be it known that I, STEPHEN JENCIGK, a subject of the Government of Austria, residing at Cleveland, in the county of Cuyahoga and State of Ohio, have invented certain new and useful Im rovements in Internail-Combustion Motortarting Apparatus, of which the following is a specification.

This invention relates to starting apparatus for internal combustion engines and particularly to a starting pinion mechanism utilized between the starting motor and the gear or fly wheel of the internal combustion motor.

Various starting pinion devices have been utilized between the starting motor and the fly wheel gear of the internal combustion motor. One type is that wherein the starting pinion moves in the direction of its axis into driving relation with the fly wheel gear. Another type is that wherein the pinion is moved bodily so that its teeth come into and out of. engagement toward and away from the periphery on the fly wheel gear. It is this last type to which the invention particularly relates. In a companion application Serial No. 275,983, filed of even date herewith, a construction is shown wherein a motor drive pinion is maintained in mesh with a driven pinion which is supported in a manner such that the rotation of the driving pinion by the starting motor causes the intermediate or driven pinion to move into mesh with the fly wheel gear. Mechanism is also shown and described in this application which places a drag on this driven, or intermediate pinion, so that the tendency of the driving pinion to swing the driven pinion into mesh is greatly increased. The present application relates to a specific form of dra or braking mechanism upon this interme iate pinion, and it comprises a cone clutch device operating upon the inside of the driven or intermediate pinion and automatically transferred by therotation of this pinion and the movement of it, into and out of mesh with the fly wheel gear.

The invention may be further briefly summarized as consisting in the construction and combination of parts hereinafter set forth in the following described drawings and claims.

Referring to the drawings, Fig. 1 is a side elevation of a portion of an internal combustion motor with an electric starting motor attached and the starting device forming the subject matter of this invention applied; Fig. is a section upon the line 2--2, of Fig. 3; Fig. 3 is a vertical sectional view in a plane parallel with the motor shaft; Fig. 4 is a left hand elevation of the device shown in Fig. 1; Fi 5 is an elevation of the opposite side; an Fig. 6 is a section upon the line 66, of Fig. 2.

Referring to the drawings, 1 represents an internal combustion motor and 2 represents the fly wheel gear thereof which is adapted to be rotated by the starting mechanism.

The starting mechanism comprises the starting motor 3 provided with a shaft 4 which projects beyond the motor casing and Into bushings 5 and 6 rigidly secured in a swinging casing 7 The bearing 6 is loosely mounted in a plate 8 secured to a stationar part by means of bolts 9 passing througi suitable ears 10 forming parts of the plate. This plate has an overhanging housing portion 11, which overhangs the upper part of the swinging casing 7. This late 8 also carries a stop member 12 extending out to a point over an elongated opening 13 formed in the plate. The casing 7 is adapted to swing in the housing portion 11 and to be stopped in its movement toward the fly wheel ear by a projecting portion 14 thereon. vl ithin the casing 7 the shaft 4 is provided with a primary drive pinion 15 in mesh with a. driven or intermediate pinion 16 having shaft portions 17 and 18 mounted in bearings 19 and 20 respectively supported in the casing7. The bearing 19 pro'ects' through, the opening 13 and is of cap orm with an elongated opening 20 in the end, a portion of said opening being in "alignment with the stop member 12. The driven or intermediate pinion 16 is provided with a cylindrical opening 21 merging into a conical opening 22 well within the pinion. This opening 22 at its small end merges into a tubular opening 23 extending out throu h the end of the shaft portion 18. Within t e openings 21, 22 and 23 is a clutch member comprising a guide rod portion 24, a conical clutch portion 25, and a guide stem 26 which is flattened on two sides and conforms in cross section to the elongated opening 20 in the cap 19. Surrounding the guide stem 26 is a spring 27 which engages the end of the conical portion and the inner wall of the cap bearing 19 and tends to move the conical clutch member 25 into engagement with the wall of the conical opening 22. It will be seen that the flattened guide stem 26 prevents the rotation of the conical clutch member 25 and that this member will be yieldingly moved into engagement with the wall of the conical opening in the driven or intermediate pinion with the result that a dra or retarding action will be exerted on this intermediate pinion. The casing 7 and this intermediate pinion normally stand in the position shown in Fig. 2, but upon the rotation of the drive pinion 15 1n a counter clockwise direction, as'shown in Fig. 2, the rotation of the parts and the drag on this intermediate pinion will cause the casing with such intermediate pinion to swing toward the fly wheel, with the result that the intermediate pinion will move into mesh with the fly wheel gear and the engine w ll be started. As soon as the engine is started the rapid rotation of the fly wheel gear Wlll throw the intermediate pinion and the casing back out of mesh.

pinion of its drag during the starting operation in order to decrease the load on the starting motor and to accomplish this result the end of the shaft portion 18 is provided with a transverse opening 28 adapted to receive a sliding rod 29 which is provided with a conical shaped opening 30 in its side adapted to receive a tapered or conical end 31 of the guide rod portion 24 of the clutch member. The sliding rod 29 is provided with a weighted end 32 on one side of the shaft portion 18 and near the other end with a transversely disposed stop pin. 33. As soon as the intermediate pinion is rotated, the weight 32 moves outward in a well known manner by centrifugal action, causing the side of the conical recess 30 to engage the conical end of the rod guide 24 and force the clutch member 25 against the tension of its spring and out of engagement with the pinion. This relation of the parts is maintained so long as the pinion is rotating at the proper speed, but when its speed is reduced, the spring 27 moves the parts back into normal position when the clutch member 25 will return to engagement with the intermediate pinion, this condition being brought about when the starting motor ceases operation.

What I claim is: i

1. Starting mechanism for internal combustion motors, comprising a gear adapted to be driven by the motor, a starting shaft carrying a primary drivin pinion, an intermediate pinion driven t ereby and having movement relative thereto into and out of mesh with said gear, and means for retarding rotation of said intermediate pinion about its own axis to cause movement thereof into meshing relation with said It is advisable to relieve the intermediate gear, said means comprising co-operating clutch members, and means for controlling the same.

2. Starting mechanism for internal combustion motors, comprising a gear adapted to be driven by the motor, a starting shaft carrying a primary driving pinion, an intermediate pinion driven thereby and having planetary movement about the same into and out of mesh with said gear, and means for retarding rotation of said intermediate pinion about its own axis to cause planetary movement thereof into meshing relation with said gear, said means comprising co-operating clutch members, and means for controlling the same.

3. Starting mechanism for internal combustion motors, comprising a gear adapted to be driven by the motor, a starting shaft carrying a primary driving pinion, an intermediate pinion driven thereby and having planetary movement about the same into and out of mesh with said gear, means for retarding rotation of said intermediate gear about its own axis to cause planetary movement thereof into meshing relation with said gear, comprising a clutch member effective upon said intermediate gear, and means for controlling said clutch member.

4. Starting mechanism for internal combustion motors, comprising a gear adapted to be driven by the motor, a starting shaft carrying a primary driving pinion, an intermediate pinion driven thereby and having planetary movement about,the same into and out of mesh with said gears, means for retarding rotation of said intermediate pinion about its own axis to cause planetary movement thereof into meshing relation with said gear, comprising co-operating clutch members effective upon said intermediate pinion, and means controlled by rotation of said intermediate pinion for regulating the effectiveness of said clutch members.

5. Starting mechanism for internal combustion motors, comprising a gear adapted to be driven by the motor, a starting shaft carrying a primary driving pinion, an intermediate pinion driven thereby and having planetary movement about the same into and out of mesh with said gear, means for retarding rotation of said intermediate pinion about its own axis to cause planetary movement thereof into meshing relation with said gear, comprising a relatively stationary pressure device effective upon said intermediate pinion, and a centrifugal device controlling the same.

6. Starting mechanism for internal combustion motors, comprising a gear adapted to be driven by the motor, a starting shaft carrying a primary driving pinion, an intermediate pinion driven thereby and having planetary movement about the same into and out of mesh with said gear, means for retarding rotation of said intermediate pinion about its own axis to cause planetary movement thereof into meshin relation with said gear, comprising a re atively stationary pressure device effective upon said intermediate pinion, a centrifugal device for controlling the same, and means actuated by the rotation of said intermediate pinion for operating said pressure device.

7. Starting mechanism for internal combustion motors, comprising a gear adapted to be driven by the motor, a starting shaft carrying a primary driving pinion, an intermediate pinion driven thereby and having planetary movement about the same into and out of mesh with said gear, means for retarding rotation of said intermediate pinion about its own axis to cause planetary movement thereof into meshing relation with said gear, and means controlled by the rotation of said intermediate pinion upon its own axis for rendering said retarding means ineffective.

8. Starting mechanism for internal combustion motors, comprising a gear adapted to be driven by the motor, a starting shaft carrying a primary driving pinion, an intermediate pinion driven thereby and provided with a clutch member and having planetary movement about said primary pinion into and out of mesh with said gear, a movable clutch member co-operating with said pinion clutch member, and means for controlling the rotation of said movable clutch member.

9. Starting mechanism for internal combustion motors, comprising a gear ada ted to be driven by the motor, a starting 5 aft carrying a primary driving pinion, an intermediate pinion driven thereby and provided with a clutch member and having planetary movement about said primary pinion into and out of mesh with said gear, a movable clutch member co-operating with said pinion clutch member, and means for disengaging said clutch members by movement of themovable clutch member after meshing relation is reached.

10. Starting mechanism for internal combustion motors, comprising a gear adapted to be driven by the motor, a starting shaft carrying a primary driving pinion, an intermediate )inion driven thereby and provided with a cl utch member and having planetary movement about said primary pinion into and out of mesh with said gear, a movable clutch member (-o-operating with said pinion clutch member, means for preventing rotation of said movable clutch member, and means for disengaging said clutch members by movement of said movable clutch member after meshing relation is reached.

11. Starting mechanism for internal combustion motors. comprising a gear adapted to be driven by the motor, a starting shaft carrying a primary driving pinion, an intermediate pinion driven thereby and having planetary movement about tie same into and out of mesh with said gear, means for retarding rotation of said intermediate pinion about its own axis to cause planetary movement thereof into meshing relation with said gear, said means comprising clutch devices having relative movement along the axis of said intermediate driving pinion, an axially movable rod for operating the same, and operating means for said rod.

12. Starting mechanism for internal combustion motors, comprising a gear adapted to be driven by the motor, a starting shaft carrying a primary driving pinion, an intermediate pinion driven thereby and having planetary movement about the same into an out of mesh with said ear, means for retarding rotation of said ntermediate pinion about its own axis to cause planetary movement thereof into meshing relation with said gear, said means comprising clutch devices having relative movement along the axis of said intermediate driving pinion, anaxially movable rod for operatin the same, and a centrifugally controlled evice at one end of said intermediate pinion for actuating said rod.

13. Starting mechanism for internal combustion motors, comprising a gear to be driven by the motor, a starting shaft car-- rying a primary driving pinion, an intermediate pinion driventhereby and having a clutch face and mounted to have planetary movement about the primary pinion into and out of mesh with said gear, a movable clutch member adapted to 00-0 mate with said clutch face, an actuating rod carried by said movable clutch member and guided in an axial opening in said intermediate pinion, a guide stem also carried by said movable clutch member, means engaging said guide stem and )reventing the rotation of said movable cl utch member, means normally tending to move the movable clutch memher into engagement with the clutch face of the intermediate pinion, means for limiting the movement of said movable clutch memher, and means actuated by the rotation of the driven pinion for disengaging the movable clutch member from the intermediate pinion.

14. Starting mechanism for internal combustion motors, comprising a gear ada ted to be driven by the motor, a starting s iaft carrying a primary driving pinion, an intermediate pinion driven thereby and having a clutch face and mounted to have planetary movement about the primary pinion into and out of mesh with said gear, a movable clutch member adapted to co-operate with said clutch face, an actuating rod carried by said movable clutch member and guided in an axial openin in said intermediate pinion, a guide stem a so carried by said, movable clutch member, means engaging said guide stem and preventing rotation of said movable clutch member, means normally tending to move the movable clutch member into engagement with the clutch face of the intermediate pinion, and means actuated by the rotation of the driven pinion for disengaging the movable clutch member from the intermediate pinion, said means comprising a centrifugal device actuated by the movable pinion.

15. Starting mechanism for internal combustion motors, comprising a gear adapted to be driven by the motor, a starting shaft carrying a primary driving pinion, an intermediate pinion driven t ereby and having a clutch face and mounted to have planetary movement about the primary pinion into and out of mesh with said gear, a movable clutch member adapted to co-operate with said face, an actuating rod carried by said movable clutch member and guided in an axial opening in said intermediate pinion, a guide stem carried by said movable clutch member. means engaging said guide stem and reventing the rotation of said movable clutch member, means normally tending to move the movable clutch member into engagement with the clutch face of the intermediate pinion, means for limiting the movement of said clutch member, andmeans actuated by the rotation of the driven pinion for disengaging the movable clutch member from the intermediate pinion. said means comprising a member mounted in the movable pinion and provided with a cam surface to engage the actuating rod of the movable clutch member. and a weight upon said member.

16. Starting mechanism for internal combustion motors, comprising a gear adapted to be driven by the motor, a starting shaft carrying a primary pinion, an intermediate pinion driven thereby and having a clutch face and mounted to have planetary movement about the primary pinion into and out of mesh with said gear, a movable clutch member adapted to co-operate with said clutch face, an actuating rod carried by said movable clutch member, and guided in an axial opening in said intermediate pinion. a guide stem also carried by said movable clutch member, means engaging said guide stem and preventing the rotation of said movable clutch member. means normally tending to move the movable clutch member into engagement with the clutch face of the intermediate pinion. means for limit ing the movement of said movable clutch member, means actuated by the rotation of the driven pinion for disengaging the movable clutch member from the intermediate pinion, said means comprising a member mounted in the movable pinion and provided with a cam surface to engage the actuating rod of the movable clutch member, a weight upon said member. and means for limiting the movement of said member.

17. In a starting mechanism for an automobile, the combination with a motor, an engine gear wheel, and a pinion connected to, and operated by. said motor. of means carried by said pinion for locking said pinion to the motor shaft to move the pinion into mesh with the engine gear wheel. and means for rendering said locking means inoperative upon meshing of the pinion with the engine gear wheel. said locking means being responsive tocentrifugal force whereby it remains inoperative during the rotation of said pinion.

In testimony whereof I aflix my signature.

STEPHEN JENCICK. 

